GB0516565D0 - A quantum repeater - Google Patents

A quantum repeater

Info

Publication number
GB0516565D0
GB0516565D0 GBGB0516565.9A GB0516565A GB0516565D0 GB 0516565 D0 GB0516565 D0 GB 0516565D0 GB 0516565 A GB0516565 A GB 0516565A GB 0516565 D0 GB0516565 D0 GB 0516565D0
Authority
GB
United Kingdom
Prior art keywords
quantum repeater
repeater
quantum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
GBGB0516565.9A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Development Co LP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Development Co LP filed Critical Hewlett Packard Development Co LP
Priority to GBGB0516565.9A priority Critical patent/GB0516565D0/en
Publication of GB0516565D0 publication Critical patent/GB0516565D0/en
Application status is Ceased legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0852Quantum cryptography
    • H04L9/0855Quantum cryptography involving additional nodes, e.g. quantum relays, repeaters, intermediate nodes or remote nodes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06NCOMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N10/00Quantum computers, i.e. computer systems based on quantum-mechanical phenomena
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29Repeaters
    • H04B10/291Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/70Photonic quantum communication
GBGB0516565.9A 2005-08-12 2005-08-12 A quantum repeater Ceased GB0516565D0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GBGB0516565.9A GB0516565D0 (en) 2005-08-12 2005-08-12 A quantum repeater

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GBGB0516565.9A GB0516565D0 (en) 2005-08-12 2005-08-12 A quantum repeater
PCT/US2006/031396 WO2007021945A2 (en) 2005-08-12 2006-08-11 Quantum repeater
JP2008526233A JP5082039B2 (en) 2005-08-12 2006-08-11 Quantum repeater
US11/990,421 US8135276B2 (en) 2005-08-12 2006-08-11 Quantum repeater
CN2006800374817A CN101401116B (en) 2005-08-12 2006-08-11 Quantum repeater
EP06801268A EP1922676A2 (en) 2005-08-12 2006-08-11 Quantum repeater

Publications (1)

Publication Number Publication Date
GB0516565D0 true GB0516565D0 (en) 2005-09-21

Family

ID=35098198

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0516565.9A Ceased GB0516565D0 (en) 2005-08-12 2005-08-12 A quantum repeater

Country Status (6)

Country Link
US (1) US8135276B2 (en)
EP (1) EP1922676A2 (en)
JP (1) JP5082039B2 (en)
CN (1) CN101401116B (en)
GB (1) GB0516565D0 (en)
WO (1) WO2007021945A2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4983193B2 (en) * 2006-10-05 2012-07-25 株式会社日立製作所 Secure optical communication repeater and two quadrature phase component of the optical measuring instrument
GB2456347B (en) * 2008-01-14 2010-10-13 Toshiba Res Europ Ltd A quantum information system
US8103172B2 (en) * 2008-06-20 2012-01-24 Telcordia Technologies, Inc. Distributable quantum relay architecture
GB2470069A (en) * 2009-05-08 2010-11-10 Hewlett Packard Development Co Quantum Repeater and System and Method for Creating Extended Entanglements
GB2471471A (en) * 2009-06-30 2011-01-05 Hewlett Packard Development Co Quantum repeater and method for creating extended entanglements utilising triggering control signals from neighbouring repeater relay nodes
GB2471470A (en) * 2009-06-30 2011-01-05 Hewlett Packard Development Co Quantum repeater and system and method for creating extended entanglements utilising cyclic synchronised control signals at repeater relay nodes
US7889992B1 (en) 2009-09-21 2011-02-15 International Business Machines Corporation Hybrid superconductor-optical quantum repeater
JP5796823B2 (en) * 2010-11-11 2015-10-21 大川 成実 Communication method using the entangled state
US8642998B2 (en) * 2011-06-14 2014-02-04 International Business Machines Corporation Array of quantum systems in a cavity for quantum computing
IL221286A (en) * 2011-08-05 2018-01-31 Selex Sistemi Integrati Spa Cryptographic key distribution system
JP5526087B2 (en) * 2011-08-08 2014-06-18 日本電信電話株式会社 Entanglement generation system, entangled generating method
US9374376B2 (en) * 2013-02-27 2016-06-21 The Boeing Company Anti-hacking system for quantum communication
US9264225B1 (en) * 2013-02-27 2016-02-16 The Boeing Company Quantum communication using quantum teleportation
JP6181434B2 (en) * 2013-06-11 2017-08-16 日本電信電話株式会社 Quantum relay network system
JP6183958B2 (en) * 2014-05-19 2017-08-23 日本電信電話株式会社 Multicast quantum network coding method
CN107359943A (en) * 2016-05-10 2017-11-17 中兴通讯股份有限公司 Electron group state entanglement concentration method and device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1163788C (en) 1998-04-24 2004-08-25 约翰霍普金斯大学 Optical method for quantum computing
CA2462693A1 (en) 2001-11-06 2003-05-15 The Johns Hopkins University Techniques for performing logic operations using quantum states of single photons
US6989523B2 (en) * 2003-04-11 2006-01-24 Hewlett-Packard Development Company, L.P. Photon number resolving systems and methods
US7038188B2 (en) * 2003-04-11 2006-05-02 Hewlett-Packard Development Company, Lp. Non-demolition photon detector that preserves input state characteristics
WO2004092776A2 (en) 2003-04-15 2004-10-28 Yeda Research And Development Company Ltd. Method and system for use in optical code division multiple access
JP4095536B2 (en) * 2003-10-30 2008-06-04 株式会社東芝 Secret key distribution method and a secret key distribution apparatus
EP1805697A2 (en) * 2004-07-26 2007-07-11 Hewlett-Packard Development Company, L.P. Quantum coherent systems and operations

Also Published As

Publication number Publication date
JP2009512238A (en) 2009-03-19
WO2007021945A3 (en) 2008-04-03
US8135276B2 (en) 2012-03-13
JP5082039B2 (en) 2012-11-28
CN101401116B (en) 2011-12-14
CN101401116A (en) 2009-04-01
EP1922676A2 (en) 2008-05-21
US20090097862A1 (en) 2009-04-16
WO2007021945A2 (en) 2007-02-22

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)